等离子体氧化NO耦合湿式氨法同时脱硫脱硝试验研究
发布时间：2019-05-23 19:23
【摘要】：为提高燃煤烟气同时脱硫脱硝工艺中的脱硝效率,将等离子体氧化技术应用到湿式氨法脱硫工艺中,建立了等离子体氧化NO耦合湿式氨法的脱硫脱硝试验装置.考察了液气比、氨水浓度、烟气流量、烟气温度、NO初始浓度、SO2初始浓度等工艺参数对同时脱硫脱硝性能的影响.试验结果表明:提高液气比、增加氨水浓度、减少烟气流量、降低烟气温度、减小NO和SO2初始浓度都可以提高脱硝效率,而试验范围内工艺参数对脱硫效率的影响几乎可以忽略;当液气比为10 L/m3、氨水浓度为4 mol/L、烟气流量为10 m3/h、烟气温度为85℃、NO初始浓度为3.5×10-4、SO2初始浓度为1.0×10-3时,该试验装置的脱硫效率和脱硝效率分别为99.6%和69.4%.
[Abstract]:In order to improve the denitrification efficiency of simultaneous desulfurization and denitrification process of coal-fired flue gas, plasma oxidation technology was applied to wet ammonia desulfurization process, and a desulphurization and denitrification test device of plasma oxidation NO coupled wet ammonia method was established. The effects of liquid-gas ratio, ammonia concentration, flue gas flow rate, flue gas temperature, NO initial concentration and SO2 initial concentration on simultaneous desulfurization and denitrification performance were investigated. The experimental results show that the denitrification efficiency can be improved by increasing the ratio of liquid to gas, increasing the concentration of ammonia, reducing the flow rate of flue gas, reducing the temperature of flue gas and reducing the initial concentration of NO and SO2. However, the influence of process parameters on desulphurization efficiency in the experimental range can almost be ignored. When the ratio of liquid to gas is 10 L 路m ~ 3, the concentration of ammonia is 4 mol/L, the flue gas flow rate is 10 m ~ 3 路h, the flue gas temperature is 85 鈩，
本文编号：2484159
[Abstract]:In order to improve the denitrification efficiency of simultaneous desulfurization and denitrification process of coal-fired flue gas, plasma oxidation technology was applied to wet ammonia desulfurization process, and a desulphurization and denitrification test device of plasma oxidation NO coupled wet ammonia method was established. The effects of liquid-gas ratio, ammonia concentration, flue gas flow rate, flue gas temperature, NO initial concentration and SO2 initial concentration on simultaneous desulfurization and denitrification performance were investigated. The experimental results show that the denitrification efficiency can be improved by increasing the ratio of liquid to gas, increasing the concentration of ammonia, reducing the flow rate of flue gas, reducing the temperature of flue gas and reducing the initial concentration of NO and SO2. However, the influence of process parameters on desulphurization efficiency in the experimental range can almost be ignored. When the ratio of liquid to gas is 10 L 路m ~ 3, the concentration of ammonia is 4 mol/L, the flue gas flow rate is 10 m ~ 3 路h, the flue gas temperature is 85 鈩，
本文编号：2484159
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